BLEND COMPOSITION, FLEXIBLE TUBING MATERIAL AND METHOD OF MAKING THE BLEND

• US 20120270979A1
• Filed: 04/25/2012
• Published: 10/25/2012
• Est. Priority Date: 04/25/2011
• Status: Active Grant

• Current Assignee: Saint-Gobain Performance Plastics Corporation (Compagnie De Saint-Gobain), University Of Massachusetts
• Original Assignee: Saint-Gobain Performance Plastics Corporation (Compagnie De Saint-Gobain), University Of Massachusetts
• Inventors: Hsu, Shaw Ling, Coughlin, Edward Bryan, Golub, Charles S., Tzivanis, Michael J., Zimmerman, Michael A., Rathi, Sahas, Chen, Xiaolang, Orf, Nicholas, Lai, Choung H.
• Granted Patent: US 9,416,267 B2
• Time in Patent Office: Days
• US Class Current: 524/317
• CPC Class Codes: B29C 2045/0091 Pellets or granules, e.g. their structure, composition, length, height, width
• CPC Class Codes: C08K 5/103 with polyalcohols
• CPC Class Codes: C08L 101/12 characterised by physical features, e.g. anisotropy, viscosity or electrical conductivity liquid crystal materials or compositions C09K19/00
• CPC Class Codes: C08L 101/16 the macromolecular compounds being biodegradable
• CPC Class Codes: C08L 2205/02 containing two or more polymers of the same C08L -group
• CPC Class Codes: C08L 67/04 Polyesters derived from hydroxycarboxylic acids, e.g. lactones C08L67/06 takes precedence

Abstract

A composition includes a blend of (a) a multi-block copolymer including at least one block of an elastomeric polymer and at least one block of a first polymer including a chiral polymer having a stereo isomeric configuration; and (b) a second polymer including an anti-chiral polymer corresponding to the chiral polymer in (a), wherein the second polymer includes an opposite handed stereo isomeric configuration to the chiral polymer in (a); wherein the blend of the chiral polymer and the anti-chiral polymer form stereo complex sites. A flexible tubing material further includes the blend. In an embodiment, a method of making the blend material is also provided.

Claims

1. A composition comprising a blend of:

(a) a multi-block copolymer including at least one block of an elastomeric polymer and at least one block of a first polymer including a chiral polymer having a stereo isomeric configuration; and

(b) a second polymer including an anti-chiral polymer corresponding to the chiral polymer in (a), wherein the second polymer includes an opposite handed stereo isomeric configuration to the chiral polymer in (a);

wherein the blend of the chiral polymer and the anti-chiral polymer form stereo complex sites.

2. The composition of claim 1, wherein the first polymer and the second polymer include the chiral polymer and the anti-chiral polymer of poly(lactic acid);

poly(3-hexylthiophene);

syndiotactic polypropylene;

ionomers;

polymethacrylates;

polystyrene;

copolymers of polystyrene;

poly(β

-propiolactones);

polyenantiomers;

or combinations thereof.

3. The composition of claim 2, wherein the first polymer and the second polymer include the chiral polymer and the anti-chiral polymer of poly(lactic acid).

4. The composition of claim 1, wherein the elastomeric polymer is an ether, an olefin, a vinyl, a polyurethane, an acrylate, a vinyl alcohol, an ethylene copolymer, an ester, a silicone, a fluoropolymer, or combination thereof.

5. The composition of claim 4, wherein the elastomeric polymer is polyethylene oxide (PEO), polyethylene glycol (PEG), polytriethylene glycol, polytetraethylene glycol, polybutadiene, polyisobutylene, polyisoprene, polystyrene-butadiene, acrylonitrile rubber, derivatives of vegetable oils, polypropylene glycol (PPG), polytetra methylene ether glycol (PTMEG), polycaprolactone, poly(para-dioxanone), poly (propylene carbonate), poly(tetramethyleneadipate-co-terephthalate), poly(butylene adipate-co-terephthalate), poly(butylene succinate), polyhydroxyalkanoates, blends, or combinations thereof.

9. The composition of claim 1, wherein the multi-block copolymer is a diblock copolymer, a triblock copolymer, a star copolymer, a graft copolymer, or a hyper-branched copolymer.

10. The composition of claim 1, having a shore A durometer of about 40 to shore D of about 50.

13. The composition of claim 1, having a glass transition temperature (Tg) equal to, or less than an chiral/anti-chiral polymer composition without an elastomeric polymer block.

14. The composition of claim 1, further comprising a plasticizer.

15. The composition of claim 14, wherein the plasticizer is a glycol ether ester.

6. (canceled)

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17. A flexible material comprising a blend of:

(a) a multi-block copolymer including at least one block of an elastomeric polymer and at least one block of a first polymer including a chiral polymer having a stereo isomeric configuration; and

(b) a second polymer including an anti-chiral polymer corresponding to the chiral polymer in (a), wherein the second polymer includes an opposite handed stereo isomeric configuration to the chiral polymer in (a);

wherein the blend of the chiral polymer and anti-chiral polymer form stereo complex sites.

18. The flexible material of claim 17, wherein the first polymer and the second polymer include the chiral polymer and the anti-chiral polymer of poly(lactic acid);

poly(3-hexylthiophene);

syndiotactic polypropylene;

ionomers;

polymethacrylates;

polystyrene;

copolymers of polystyrene;

poly(β

-propiolactones);

polyenantiomers;

or combinations thereof.

19. The flexible material of claim 18, wherein the first polymer and the second polymer include the chiral polymer and the anti-chiral polymer of poly(lactic acid).

20. The flexible material of claim 17, wherein the elastomeric polymer is an ether, an olefin, a vinyl, a polyurethane, an acrylate, a vinyl alcohol, an ethylene copolymer, an ester, a silicone, a fluoropolymer, or combination thereof.

29. The flexible material of claim 17, having a glass transition temperature (Tg) equal to, or less than an chiral/anti-chiral polymer without an elastomeric polymer block.

30. The flexible material of claim 17, further comprising a plasticizer.

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33. A method of making a blend composition comprising:

providing (a) a multi-block copolymer including at least one block of an elastomeric polymer and at least one block of a first polymer including a chiral polymer having a stereo isomeric configuration;

blending the multi-block copolymer with (b) a second polymer including an anti-chiral polymer corresponding to the chiral polymer in (a), wherein the second polymer includes an opposite handed stereo isomeric configuration to the chiral polymer in (a), wherein the blend of the chiral polymer and the anti-chiral polymer form stereo complex crystalline sites; and

extruding or molding the blend.

34. The method of claim 33, wherein the first polymer and the second polymer include the chiral polymer and the anti-chiral polymer of poly(lactic acid);

poly(3-hexylthiophene);

syndiotactic polypropylene;

ionomers;

polymethacrylates such as polymethylmethacrylate, poly(N,N-dimethylamino-2-ethyl methacrylate);

polystyrene;

copolymers of polystyrene;

poly(β

-propiolactones);

polyenantiomers;

or combinations thereof.

35. The method of claim 34, wherein the first polymer and the second polymer include the chiral polymer and the anti-chiral polymer of poly(lactic acid).

36. The method of claim 33, wherein the elastomeric polymer is an ether, an olefin, a vinyl, a polyurethane, an acrylate, a vinyl alcohol, an ethylene copolymer, an ester, a silicone, a fluoropolymer, or combination thereof.

41. The method of claim 33, wherein providing the multi-block copolymer includes polymerizing the first polymer with the elastomeric polymer and a catalyst.

45. The method of claim 33, wherein the blend has a glass transition temperature (Tg) equal to, or less than an chiral/anti-chiral polymer without an elastomeric polymer block.

46. The method of claim 33, further comprising blending in the blend composition a plasticizer.

49. The method of claim 33, wherein extruding or molding the blend includes extruding or injection molding the blend into a flexible component or product.

37. (canceled)

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